DE102010014144A1

DE102010014144A1 - Electrical connection terminal

Info

Publication number: DE102010014144A1
Application number: DE102010014144A
Authority: DE
Inventors: Henryk Bies
Original assignee: Wago Verwaltungs GmbH
Current assignee: Wago Verwaltungs GmbH
Priority date: 2010-04-07
Filing date: 2010-04-07
Publication date: 2011-10-13
Anticipated expiration: 2030-04-08
Also published as: DE102010014144B4; US20110250803A1; DE202010018177U1; DE102010014144C5; US8591271B2

Abstract

Electrical terminal (1) for the clamping connection of at least one electrical conductor (5) with a contact frame (4) received in an insulating housing (2) punched out of a flat metal material and in the manner of a channel with at least two side walls and a contact bottom (11) is formed, wherein the contact frame (4) for forming a Leiterklemmanschlusses on each side wall each having a leaf spring (9) in the manner of a punched out of the flat metal part tongue, which is bent out of the plane of the flat metal part, such that the free end of Leaf spring (9) against the electrical conductor (5) directed clamping edge (10) and with a in the direction of a clamping edge (10) formed by the clamping point tapering at least partially funnel-shaped conductor insertion region (30), wherein the conductor insertion region (30) in Ladereinereinsteckrichtung to a conductor insertion opening (3) in the insulating housing (2) closes. The at least partially funnel-shaped conductor insertion region (30) is circumferentially at least almost closed and is formed together from the contact frame (4) and at least partially by the insulating material (2).

Description

The invention relates to an electrical terminal for the terminal connection of at least one electrical conductor with a received in an insulating housing contact frame, which is punched out of a flat metal material and shaped in the manner of a channel having at least two side walls and a contact bottom, wherein the contact frame to form a Leiterklemmanschlusses each side wall each having a leaf spring in the nature of a formed of the flat metal part tongue, which is bent out of the plane of the flat metal part, such that the free end of the leaf spring forms a directed against the electrical conductor clamping edge and with a in the direction of a through the Clamping edge formed clamping point at least partially tapered funnel-shaped conductor insertion region, wherein the conductor insertion region in Leitereinsteckrichtung connects to a conductor insertion opening in the insulating material.
State of the art
The DE 197 35 835 B4 The DE 197 35 835 B4 ws an electrical terminal for the connection of an electrical conductor with a tunnel-like insertion, to which connect two side facing each other leaf springs for clamping support of the electrical conductor. The nip can be opened by means of a pusher acting from above, which presses on bevels formed on the leaf springs, so that the conductor can be removed again. In particular, in the field of leaf springs no sufficient guidance of a conductor to be inserted is given, so that it can come to an insecure clamping of the same.
also shows a connection terminal for an electrical conductor with a plug contact, which has a cylindrical, essentially closed contact frame for receiving the conductor and a slot within the cylindrical area. Furthermore, the cylindrical area has a clamping tongue within the slot for clamping the conductor and the cylindrically shaped contact frame is provided with a funnel-shaped insertion area for the electrical conductor. The contact frame is therefore designed quite complex. The U.S. 7,513,793 Further shows a terminal for an electrical conductor with a plug contact having a cylindrical substantially closed contact frame for receiving the conductor and a slot within the cylindrical portion. Further, the cylindrical portion has a clamping tongue within the slot for clamping the conductor, and the cylindrical shaped contact frame is provided with a funnel-shaped insertion portion for the electrical conductor. The contact frame is thus designed quite expensive.
a connection terminal which can be fastened to a printed circuit board and which is bent from a one-piece metal part. The connection terminal is designed as a substantially continuously closed, square tubular contact frame with contact sections at the end facing the circuit board. A leaf spring tongue protrudes from the bottom and the top of the tunnel-shaped component in the direction of the tunnel interior, whereby an electrical conductor can be clamped between the ends of the leaf springs, so that here, too, a relatively complex design of the contact frame with a high metallic content is given . Further, the U.S. 4,299,436 a mountable on a circuit board terminal, which is bent from a one-piece metal part. The terminal is designed as a substantially continuous closed rectangular tubular contact frame with end-side contact portions to the circuit board. From the bottom and the top of the tunnel-shaped component projects in each case a leaf spring tongue turned off in the direction of the tunnel interior, wherein between the ends of the leaf springs, an electrical conductor can be received by clamping, so that here is given a relatively complex design of the contact frame with a high metallic content,
Object of the invention
The object of the invention is to provide an electrical terminal for the connection of an electrical conductor, which ensures a secure clamping of the electrical conductor and at the same time has a simple structure.
Disclosure of the invention
The object is achieved by the features of claim 1. Thereafter, for an electrical terminal for the terminal connection of at least one electrical conductor having a received in an insulating housing contact frame, which is formed from a flat metal material formed (eg punched) and in the manner of a channel with at least two side walls and a contact bottom is formed the contact frame for forming a conductor clamping connection has on each side wall in each case a leaf spring in the form of a tongue formed out of the flat metal part (eg punched out), which is bent out of the plane of the flat metal part, such that the free end of the leaf spring bears against the electrical conductor directed clamping edge forms and with a clamping point in the direction of a clamping point at least partially tapered funnel-shaped conductor insertion area, wherein the conductor insertion area in Leiterereinsteckrichtung to a conductor insertion opening in Isolierstoffgehäu se, provided that according to the invention the at least partially funnel-shaped conductor insertion area is circumferentially at least almost closed and that the funnel-shaped conductor insertion area is formed together from the contact frame and the insulating material.
The fact that the funnel-shaped conductor insertion region is composed of the insulating material housing and the contact frame or of these two components, a simple and effective conductor guidance is achieved, in particular, the contact frame can be very simple, compact and material-saving. If necessary, the conductor lead-in area can thus also be varied in a simple manner and adapted to the different requirements, since the two components can be viewed separately from one another.
In a preferred embodiment, the contact frame has a contact bottom, which is bent out of the plane of the flat metal part and inclined in Leitereinsteckrichtung against an inserted electrical conductor.
According to a further preferred embodiment, the insulating material housing in the region of the conductor insertion region on a housing inner wall, which is inclined in Leitereinsteckrichtung against an inserted electrical conductor.
With this embodiment, the contact bottom and the inner wall of the housing as part of the funnel-shaped conductor insertion region can be adapted separately from one another to the required conditions. Thus, the conductor insertion region, viewed in cross-section, can be embodied, for example, straight or curved in the region of the contact base and / or the inner wall of the housing, which allows individual and rapid adaptation.
According to a further preferred embodiment, the contact frame for easy connection of the electrical terminal to a circuit board, for example by means of an SMD solder joint, two contact areas. At least one conductor track on the circuit board is contacted with the contact areas. The contact areas are preferably connected in the longitudinal extent of the contact frame at the front and rear ends.
Preferably, the free end of the leaf spring is exposed directed against the electrical conductor to form the clamping edge. This results in an optimized clamping connection, since the clamping edge can be clawed by the employed clamping angle in an optimized manner with the electrical conductor.
On the leaf springs each directed to the outside of the electrical terminal run-on slope is formed, which are funnel-shaped issued to each other. By means of these chamfers, the nip can be opened by means of an actuating means, the leaf springs can be pressed apart on the chamfers in a simplified manner. In this way, either inserted electrical conductors can be easily removed or used in a simplified manner. In particular, multi-stranded conductors can thus be used for this electrical connection terminal.
Preferably, as an actuating element for opening the nip, a pusher is used, which is integrally formed on the insulating material, wherein the pusher can be pressed over the funnel-shaped issued to each other starting chamfers of the contact frame between the leaf springs to open the terminal connection of the electrical conductor by pushing apart of the leaf springs ,
In a further preferred embodiment, the contact frame is connected to the insulating material housing via at least one latching connection. In this way, results in an easy-to-use and durable solid connection between the contact frame and insulating material.
In order to effectively avoid damage, in particular breakage, of the leaf springs and / or the pusher, in a preferred embodiment an overload protection is provided for this purpose. Advantageously, the deflection of the leaf spring by side walls and / or partitions of the insulating material can be limited. Further advantageous is the limitation of the deflection of the trigger arm of the pusher by an abutment of the trigger arm on at least one leaf spring. These embodiments allow overload protection without significant adjustments to the electrical terminal and are therefore inexpensive.
Brief description of the drawings
The invention will be explained in more detail with reference to an embodiment shown in FIGS. Show it
1 : an inventive terminal in the assembly in perspective view, 1 : an inventive terminal in the assembly in perspective view,
2 a terminal according to the invention arranged on a printed circuit board with plugged-in conductor without insulating housing,
3 a perspective view of the contact frame, 3 a perspective view of the contact frame,
4 FIG. 2: a perspective sectional view of the connecting terminal according to the invention arranged on a printed circuit board with the electrical conductor inserted, FIG. 4 FIG. 2: a perspective sectional view of the connecting terminal according to the invention arranged on a printed circuit board with the electrical conductor inserted, FIG.
5a : A sectional view of the terminal according to the invention according to the section IV-IV 1 with unconfirmed pusher,
5b : A sectional view of the terminal according to the invention according to the section IV-IV 1 with pressed handle, 5b : A sectional view of the terminal according to the invention according to the section IV-IV 1 with pressed handle, 5b : A sectional view of the terminal according to the invention according to the section IV-IV 1 with pressed handle, 5b : A sectional view of the terminal according to the invention according to the section IV-IV 1 with pressed handle,
6a a first perspective view of the insulating housing, 6a a first perspective view of the insulating housing,
6b : a second perspective view of the insulating material housing, 6b : a second perspective view of the insulating material housing,
: a sectional view of the connection terminal according to the invention corresponding to section VII-VII from FIG. 7th : A sectional view of the terminal according to the invention corresponding to the section VII-VII of Figure a.
Embodiment of the invention
executed per pole. The connection terminal can also have any other number of poles. The 1 shows at inventive electrical terminal 1 with an insulating material housing 2 in which a metallic contact frame 4th is included. The insulating material housing 2 has on a front side 19th at least one conductor insertion opening 3 for the insertion of an electrical conductor 5 ( 4th ). In the illustrated embodiment, the terminal is 1 two-pole, each with a conductor insertion opening 3 and a contact frame 4th executed by pole. The terminal can also have any other number of poles.
in particular connected via a soldered connection (SMD soldered connection), but a plug connection is also conceivable. In the Are recognizable in the 1 further more connection areas 16 of the contact frame 4th which corresponding contact sections 28 , e.g. B. traces, a circuit board 7th to contact ( 2 ). The connection areas 16 are with the contact sections 28 In particular connected via a solder joint (SMD solder joint), but also conceivable is a plug connection. In the
of the electrical conductor 5 between the as leaf springs 9 formed side walls of the channel-shaped contact frame 4th , is recorded. The leaf springs 9 are bent out of a flat metal part and their free ends form a clamping edge 10 so that the two opposite clamping edges 10 the leaf springs 9 a terminal point for the electrical conductor 5 form. The area from which to the conductor entry opening 3 subsequent canal entrance 8th of the contact frame 4th up to that of the clamping edges 10 formed terminal point defines a conductor entry area 30th . 2 is the one on the circuit board 7th held contact frame 4th seen. In the presentation was dispensed with the insulating material, so that the connection of the electrical conductor 5 on the contact frame 4th is recognizable. The electrical conductor 5 is through an annular curved, at least almost closed running channel entrance 8th of the contact cream 4th introduced, with the stripped end 6th of the electrical conductor 5 between the as leaf springs 9 formed side walls of the channel-shaped contact frame 4th , recorded. The leaf springs 9 are bent out of a flat metal part and their free ends form a clamping edge 10 so that the two opposite clamping edges 10 the leaf springs 9 a terminal point for the electrical conductor 5 form. The area of which is connected to the conductor insertion opening 3 subsequent channel entrance 8th of the contact frame 4th up to that of the clamping edges 10 formed clamping point defines a conductor insertion area 30th ,
is embossed or molded to improve the clamping effect. Furthermore, the contact frame 4th a contact ground 11 on, which is protruded or bent out of the surface of a flat metal part in such a way that this is from the channel entrance 8th in the direction of the terminal point, i.e. essentially in the conductor insertion area 30th , rising in the direction of an inserted conductor 5 is inclined. To the contact ground 11 closes at one end at the canal entrance 8th a first contact area 16 at the other end a second contact area 16 on. In addition, in 3 at the annular canal entrance 8th molded front locking hooks 14th can be seen which one is used for the latching connection with the insulating housing 2 in there next to the conductor entry opening 3 arranged corresponding front locking recesses 17th intervention. In the area between the by the clamping edges 10 formed clamping point and the rear contact area facing away from the annular channel entrance 16 are on the contact bottom 11 rear side on the contact floor 11 arranged locking hooks 15th provided which from the circuit board 7th or from the through the contact areas 16 formed plane are preferably spaced apart and in not shown latching recesses of the insulating material 2 intervention. The structure of the contact frame 4th is in the 3 clearly visible, it can be seen that the formation of the clamping edge 10 at the free end of the leaf spring 9 an additional, against the electrical conductor 5 directed exhibition 13 is embossed or molded to improve the clamping action. Furthermore, the contact frame 4th a contact bottom 11 on, which is such out of the surface of a flat metal part or bent out, that this from the channel entrance 8th in the direction of the clamping point, that is essentially in the conductor insertion area 30th , rising in the direction of an inserted conductor 5 is executed inclined. To the contact ground 11 closes at the canal entrance at one end 8th a first contact area 16 at the other end a second contact area 16 at. In addition, in 3 at the annular channel entrance 8th molded front latching hook 14th recognizable, which for latching connection with the insulating material 2 in there next to the ladder entry opening 3 arranged corresponding front locking recesses 17th intervention. In the area between through the clamping edges 10 formed clamping point and facing away from the annular channel entrance rear contact area 16 are at the contact ground 11 Rear side at the contact bottom 11 arranged latch hooks 15th provided, which of the circuit board 7th or from through the contact areas 16 formed level are preferably spaced and not shown in recesses of the insulating housing 2 intervention.
is formed, has the leaf spring 9 each on their the contact bottom 10 facing away from the long side a bevel 12th on which each to the outside or top of the housing 18th the connection terminal 1 is directed. The bevels 12 a contact frame 4th thus together form an upwardly directed from the contact base 10 averted funnel-shaped receptacle. In the area of the free end of the leaf springs 9 , on each of which the clamping edge 10 is formed, has the leaf spring 9 each at their contact bottom 10 opposite longitudinal side of a run-on slope 12th on, which in each case to the outside or housing top 18th the terminal 1 is directed. The run-up slopes 12th a contact frame 4th thus together form an upward, from the contact bottom 10 remote funnel-shaped receptacle.
each show a sectional view of the invention from a contact frame 4th and an insulating housing 2 composite electrical connection terminal 1 , where in the 4th additionally a connected electrical conductor 5 is shown. In these figures it can be seen that the housing inner wall 31 has an inclined area within which the housing inner wall 31 against an inserted conductor 5 is executed inclined. This inclined area lies within the conductor insertion area defined above 30th or can extend over the entire conductor entry area 30th extend. The 4th such as 5a other 5b each show a sectional view of the invention of a contact frame 4th and an insulating housing 2 assembled electrical terminal 1 , where in the 4th in addition to a connected electrical conductor 5 is shown. In these figures, it can be seen that the housing inner wall 31 has an inclined portion within which the housing inner wall 31 against an inserted conductor 5 is executed inclined. This inclined area lies within the above-defined conductor lead-in area 30th or can also be about the entire lead introduction area 30th extend.
one hand and the leaf springs 9 and the inner wall of the housing 31 on the other hand, there are narrow gaps. The cross-section of the conductor entry area 30th is designed essentially rectangular or square in the exemplary embodiment, but can also have any other shape, in particular round or at least partially round or arcuate. It is further evident in these illustrations that the lead introduction area 30th due to the design of the contact frame 4th with its leaf springs 9 and his contact floor 11 as well as the housing inner wall 31 of the insulating material housing 2 one at least in sections funnel-shaped design, it being clear that the funnel-shaped conductor insertion area 30th from the contact frame 4th and the insulating housing 2 is composed. The funnel-shaped conductor insertion area 30th is circumferentially at least almost completely closed. Only between the leaf springs 9 and the contact floor 11 on the one hand and the leaf springs 9 and the housing inner wall 31 on the other hand, there are narrow gaps. The cross section of the conductor insertion area 30th In the exemplary embodiment, it is essentially rectangular or square, but may also have any other shape, in particular round or at least partially round or arcuate.
is opened. The individual wires of the stranded conductor 5 can due to the almost closed conductor entry area on the circumference 30th do not evade and be safe from the clamping edge 10 held clamped. That of the conductor entry opening 3 facing end of the funnel-shaped section of the conductor insertion area 30th with the larger cross section can also, if desired, be used as a stop for the insulated section of the electrical conductor 5 serve. The funnel-shaped conductor insertion area 30th forms for an electrical conductor to be inserted 5 , in particular for its stripped end 6th a guide so that the stripped end can be targeted fed to the nip. The electrical connection terminal 1 is also for stranded electrical conductors 5 usable, in particular when passing through the clamping edges 10 formed clamping point by an actuator, which acts as a pusher 21st is formed before plugging into the electrical conductor 5 is opened. The individual wires of the stranded conductor 5 can due to the circumferentially nearly closed conductor insertion area 30th do not dodge and be safe from the clamping edge 10 held clamped. The conductor introduction opening 3 facing the end of the funnel-shaped portion of the conductor insertion area 30th with the larger cross-section can also, if desired, as a stop for the isolated portion of the electrical conductor 5 serve.
In that the funnel-shaped conductor insertion area 30 composed of the insulating material 2 In that the funnel-shaped conductor insertion area 30 composed of the insulating material 2 In that the funnel-shaped conductor insertion area 30 composed of the insulating material 2 In that the funnel-shaped conductor insertion area 30 composed of the insulating material 2 and the contact frame 4th or is formed by these two components, a simple and effective conductor guidance is achieved, in particular the contact frame 4th very simple, compact and material-saving can be performed.
In the 4 . 5a and 5b is also a pusher 21 In the 4 . 5a and 5b is also a pusher 21 In the 4 . 5a and 5b is also a pusher 21 In the 4 . 5a and 5b is also a pusher 21 In the 4 . 5a and 5b is also a pusher 21 In the 4 . 5a and 5b is also a pusher 21 In the 4 . 5a and 5b is also a pusher 21 In the 4 . 5a and 5b is also a pusher 21 as an actuator with a trigger arm 23 recognizable, which is integral with the insulating material 2 is executed. The pusher 21st acts on run-up slopes 12th and presses this run-in slopes when actuated 12 together with the leaf spring 9 That is when impressed with a force F in the direction of the insulating material 2 , apart. Thus, the clamping edges 10 the leaf spring 9 Pressed apart and the clamping point for removing an electrical conductor 5 or for plugging in an electrical conductor 5 , in particular a stranded conductor 5 open.
connected pusher arm part 24 roughly in the plane of the rear of the case 20th or runs roughly parallel to it. The contour of the press arm 23 follows the contour of the transition from the rear of the case 20th to the top of the housing 18th so that a second pusher arm part 25th , which with the first pusher arm part 24 is integrally connected approximately in the plane of the top of the housing 18th or runs roughly parallel to it. The back of the case 20th and the top of the case 18th are arranged at an angle to one another, preferably the rear of the housing 20th and the top of the case 18th arranged at least almost at right angles to one another. The pusher arm 23 is thus essentially designed as an angle. On the second part of the pusher arm 25th is an actuating surface at its end facing away from the first pusher arm part 27 integrally formed, which is trough-shaped in the present embodiment, but alternatively any other shape, for. B. slot or cross slot, can assume. It can thus be seen that the handle 21st in a housing recess 22nd which is located on the back of the housing 20th and the top of the case 18th extends, is arranged. The housing recess 22nd is essentially designed as a breakthrough, so that the handle 21st on the inside of the insulating housing 2 arranged contact frame 4th can act. The trigger 21st as an actuating element is thus with its angled design in the wall or surface of the insulating material housing 2 integrated and represents part of the insulating housing 2 yourself. The trigger arm 23 is according to the illustration below 6a other 6b in one piece in the area of the back of the housing 20th , Preferably in the lower, the housing top 18th remote half, on the insulating housing 2 formed. The trigger arm 23 follows the contour of the insulating material 2 , making a first on the back of the case 20th Tailed pusher arm part 24 approximately in the plane of the case back 20th or runs approximately parallel to it. The contour of the trigger arm 23 follows in the course of the contour of the transition from the back of the case 20th to the top of the housing 18th so that a second pusher arm part 25th , which with the first pusher arm part 24 is integrally connected approximately in the plane of the housing top 18th or runs approximately parallel to it. The case back 20th and the case top 18th are arranged at an angle to each other, preferably the case back 20th and the case top 18th arranged at least approximately at right angles to each other. The trigger arm 23 is thus essentially designed as an angle. On the second presser arm part 25th is at its end facing away from the first handle arm part of an actuating surface 27 formed, which is trough-shaped in the present embodiment, but alternatively also any other arbitrary shape, for. B. slit or phillips shape, can assume. It is thus recognizable that the pusher 21st in a housing recess 22nd which are located above the back of the housing 20th and the case top 18th extends, is arranged. The housing recess 22nd is designed essentially as a breakthrough, so the pusher 21st on the inside of the insulating material 2 arranged contact frame 4th can act. The pusher 21st As an actuating element is thus with its angled design in the wall or surface of the insulating material 2 integrated and provides a part of the insulating material 2 itself.
as well as in the area of the rear of the case 20th . In the assembled with the in the insulating housing 2 used contact frame 4th and in the non-actuated state the pusher stands 21st however, at least opposite the top of the housing 18th something out like this in 5a is recognizable. The bevels 12th of the contact frame 4th are on the trigger 21st or, more precisely, on its trigger surface 26th ( 7th ) and steer the handle 21st outwards so that the pusher arm 23 is under elastic bias. In the 5b the actuated state is shown in which the trigger 21st with an actuation force F in the area of the trough-like actuation surface 27 is applied. It can be seen that the pusher arm 23 is elastically deformed essentially uniformly under the actuating force F, the area of the lever 21st with the actuation surfaces 26th between the leaf springs 9 immersed. The pusher arm 23 has a substantially uniform strength or thickness for uniform elastic deformation. During the actuation process, ie the pushing in of the trigger 21st becomes the trigger 21st from over the top of the case 18th protruding position shifted to a position in which the pusher arm 23 , especially the second pusher arm part 25th , in the insulating housing 2 immersed. The elastic bias of the pusher arm is thereby applied 23 lifted and the trigger arm 23 subjected to a reverse tension, so that the pusher arm tends to move outwards again to get to its starting position. When unassembled, the pusher arm is located 23 or the outer surface substantially in the plane of the surface contour of the insulating material 2 , both in the area of the housing top 18th as well as in the area of the back of the case 20th , In mounted with the in the insulating housing 2 used contact frame 4th and not actuated state is the pusher 21st but at least opposite the top of the case 18th something out, like this in 5a is recognizable. The run-up slopes 12 of the contact frame 4th lie on the pusher 21st or more precisely on the pusher surface 26th ( 7th ) and steer the pusher 21st outward, leaving the pusher arm 23 is under an elastic bias. In the 5b the actuated state is shown in which the pusher 21st with an actuating force F in the area of the through-like actuating surface 27 is charged. It can be seen that the pusher arm 23 under the operating force F is substantially uniformly elastically deformed, the area of the pusher 21st with the actuating surfaces 26th between the leaf springs 9 dips. The trigger arm 23 has a substantially uniform thickness or thickness for uniform elastic deformation. During the actuation process, ie the depression of the pusher 21st becomes the pusher 21st from the over the top of the housing 18th protruding position shifted to a position in which the pusher arm 23 , in particular the second pusher arm part 25th , in the insulating housing 2 dips. This is the elastic bias of the trigger arm 23 lifted and the pusher arm 23 subjected to a reverse voltage, so that the trigger arm is anxious to move outward again to get into its initial position.
can protrude (see also 1 ). At the same time, it is achieved that the lower side of the housing of the assembled electrical connection terminals forms an essentially flat surface without any protruding components. The insulated housing 2 can thus im on the circuit board 7th arranged state immediately up to the surface of the circuit board 7th range or on the circuit board 7th rest. The 6a other 6b put the insulating material case 2 as an item, in particular the described embodiment of the pusher 21st and the connection of the trigger arm 23 to the insulating material 2 again clearly visible. Furthermore, it can be seen that the insulating material 2 on a housing bottom each recesses 32 in which the contact areas 16 of the contact frame 4th intervene so that these contact areas 16 over the back of the case 20th and the front of the case 19th with the conductor entry openings 3 can protrude (see also 1 ). At the same time it is achieved that the housing underside of the assembled electrical terminals forms a substantially flat surface without protruding components. The insulating material housing 2 can thus on the PCB 7th arranged state immediately up to the surface of the circuit board 7th rich or on the circuit board 7th rest.
is removed, press the leaf springs 9 the pusher due to its restoring force 21st over the bevels 12 as well as the corresponding actuation area 26th back to the starting position. The 7th clarifies again the operation of the pusher 21st on the contact frame 4th , The pusher surface 26th of the pusher 21st is formed substantially wedge-shaped and acts on the corresponding inclined bevels 12 of the contact frame 4th , When applying the pusher 21st with a force F over the actuating surface 27 slides the wedge-shaped pusher surface 26th over the run-up slopes 12th , dives between the leaf springs 9 and pushes them apart. Once the operating force F from the pusher 21st is taken away, press the leaf springs 9 due to their restoring force the pusher 21st over the run-up slopes 12th as well as the corresponding actuating surface 26th back to the starting position.
The illustrated angular configuration of the pusher 21 allows a relatively long effective pusher arm 23 with a correspondingly long lever arm, which is particularly advantageous in cramped space conditions or very small electrical terminals with small insulating housings. So it is in particular miniaturized terminals by the inventive design of the pusher 21 in the first place enables an effective pusher 21st for the operation of a contact frame 4th provided.
would have to be dimensioned larger overall. So you can see that with the present arrangement of the handle 21st inside the connection terminal 1 and its interaction with the contact frame 4th , the pusher 21st can be kept very small overall and is therefore particularly suitable for very small connecting terminals. Because of the pusher arm 23 Subject to bias in the unactuated state, the voltage at which the trigger arm 23 is kept small. The value of the bias voltage is relatively small because of the deflection of the trigger arm 23 in the unactuated state is also relatively small. The deflection of the trigger arm 23 in the actuated position in the insulating material 2 It is also not substantially much larger than in the unactuated state, so that the stresses to which the pusher arm is subjected can also be kept relatively small. In contrast, the entire actuation would be on a tension-free handle arm 23 would be abandoned, which would be on the pusher arm 23 acting tension much larger, so that the handle arm 23 would have to be larger in size. It can therefore be seen that with the present arrangement of the pusher 21st inside the terminal 1 and its interaction with the contact frame 4th , the pusher 21st overall can be kept very small and thus is particularly suitable for very small-sized terminals.
nudge. The side walls 33 and / or partitions 34 thus limit deflection of the leaf springs 9 and thus prevent them from being overloaded and thus not being able to plastically deform or break. With the illustrated embodiment of the electrical terminal can also overload protection for both the leaf springs 9 as well as for the pusher 21st will be realized. How out 7th it can be seen that are the leaf springs 9 arranged run-on slopes 12 at a sufficient deflection of the leaf springs 9 on the side walls 33 of the insulating material housing 2 and / or one or more between the poles of the terminal 1 arranged partitions 34 of the insulating material housing 2 nudge. The side walls 33 and / or partitions 34 thus limit a deflection of the leaf springs 9 and prevent them from being overloaded and thus unable to plastically deform or break.
At the same time, however, can also overload protection for the pusher 21 or the trigger arm can be realized. Due to the limited deflection of the leaf springs 9 can arise between two associated leaf springs only a limited gap. Provided the maximum width of the section of the pusher arm 23 which is between the leaf springs 9 immersed is greater than the gap between the maximum deflected leaf springs 9 , the pusher arm can 23 be deflected limited so that this can not be subjected to excessive burden and a break of the trigger arm 23 effectively avoided.
is avoided. An overload protection for the pusher 21st or its trigger arm 23 can also be achieved in that on the between the leaf springs 9 immersed section of the trigger arm 23 a stop is provided, which at a maximum deflection of the trigger arm or at a maximum immersion depth on the leaf springs 9 or on the run-up slopes 12 rests, so that further deflection of the trigger arm is prevented and damage to the pusher 21st is avoided.
LIST OF REFERENCE NUMBERS

1 1: Anschlussklemme terminal
2 2: Isolierstoffgehäuse Insulated
3 3: Leitereinführungsöffnung Conductor insertion opening
4 4: Kontaktrahmen contact frame
5 5: elektrischer Leiter electrical conductor
6 6: abisoliertes Ende des elektrischen Leiters stripped end of the electrical conductor
7 7: Leiterplatte circuit board
8 8th: Kanaleingang channel input
9 9: Blattfedern leaf springs
10 10: Klemmkante clamping edge
11 11: Kontaktboden Contact floor
12 12: Anlaufschräge starting slope
13 13: Ausstellung des freien Endes der Blattfeder Exhibition of the free end of the leaf spring
14 14: vorderer Rasthaken front latching hook
15 15: hinterer Rasthaken rear locking hook
16 16: Kontaktbereiche contact areas
17 17: vordere Rastausnehmung front recess
18 18: Gehäuseoberseite Housing top
19 19: Stirnseite front
20 20: Gehäuserückseite Case back
21 21: Drücker handle
22 22: Gehäuseausnehmung housing recess
23 23: Drückerarm depressor
24 24: erstes Drückerarmteil first pusher arm part
25 25: zweites Drückerarmteil second pusher arm part
26 26: Drückerfläche pusher surface
27 27: Betätigungsfläche actuating surface
28 28: Leiterbahn, Kontaktabschnitt Trace, contact section
30 30: Leitereinführbereich Conductor insertion area
31 31: Gehäuseinnenwandung housing inner wall
32 32: Ausnehmung recess
33 33: Seitenwand Side wall
34 34: Zwischenwand partition

QUOTES INCLUDE IN THE DESCRIPTION
This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Cited patent literature

DE 19735835 B4 [0002]
US 7513793 [0003]
US 4299436 [0004]

Claims

Electrical terminal according to claim 1, characterized in that the contact frame ( 4 ) a contact base ( 11 ), which is bent out of the plane of the flat metal part and in Leitereinsteckrichtung against an inserted electrical conductor ( 5 ) is inclined. Electrical terminal according to claim 1, characterized in that the contact frame ( 4 ) a contact base ( 11 ), which is bent out of the plane of the flat metal part and in Leitereinsteckrichtung against an inserted electrical conductor ( 5 ) is inclined. Electrical terminal according to claim 1, characterized in that the contact frame ( 4 ) a contact base ( 11 ), which is bent out of the plane of the flat metal part and in Leitereinsteckrichtung against an inserted electrical conductor ( 5 ) is inclined. Electrical terminal according to claim 1, characterized in that the contact frame ( 4 ) a contact base ( 11 ), which is bent out of the plane of the flat metal part and in Leitereinsteckrichtung against an inserted electrical conductor ( 5 ) is inclined. Electrical terminal according to claim 1, characterized in that the contact frame ( 4 ) a contact base ( 11 ), which is bent out of the plane of the flat metal part and in Leitereinsteckrichtung against an inserted electrical conductor ( 5 ) is inclined. Electrical terminal according to claim 1, characterized in that the contact frame ( 4 ) a contact base ( 11 ), which is bent out of the plane of the flat metal part and in Leitereinsteckrichtung against an inserted electrical conductor ( 5 ) is inclined. Electrical terminal according to claim 1, characterized in that the contact frame ( 4 ) a contact base ( 11 ), which is bent out of the plane of the flat metal part and in Leitereinsteckrichtung against an inserted electrical conductor ( 5 ) is inclined.
) is inclined. Electrical terminal according to claim 1 and 2, characterized in that the insulating housing ( 2 ) in the area of the lead introduction area ( 30th ) a housing inner wall ( 31 ), which in conductor insertion direction against an inserted electrical conductor ( 5 ) is inclined.
Electrical terminal according to one of claims 1 to 3, characterized in that the contact frame ( 4 ) two contact areas ( 16 ) for contacting in particular at least one conductor track ( 28 ) on a printed circuit board ( 7 ) having. Electrical terminal according to one of claims 1 to 3, characterized in that the contact frame ( 4 ) two contact areas ( 16 ) for contacting in particular at least one conductor track ( 28 ) on a printed circuit board ( 7 ) having. Electrical terminal according to one of claims 1 to 3, characterized in that the contact frame ( 4 ) two contact areas ( 16 ) for contacting in particular at least one conductor track ( 28 ) on a printed circuit board ( 7 ) having. Electrical terminal according to one of claims 1 to 3, characterized in that the contact frame ( 4 ) two contact areas ( 16 ) for contacting in particular at least one conductor track ( 28 ) on a printed circuit board ( 7 ) having. Electrical terminal according to one of claims 1 to 3, characterized in that the contact frame ( 4 ) two contact areas ( 16 ) for contacting in particular at least one conductor track ( 28 ) on a printed circuit board ( 7 ) having. Electrical terminal according to one of claims 1 to 3, characterized in that the contact frame ( 4 ) two contact areas ( 16 ) for contacting in particular at least one conductor track ( 28 ) on a printed circuit board ( 7 ) having. Electrical terminal according to one of claims 1 to 3, characterized in that the contact frame ( 4 ) two contact areas ( 16 ) for contacting in particular at least one conductor track ( 28 ) on a printed circuit board ( 7 ) having. Electrical terminal according to one of claims 1 to 3, characterized in that the contact frame ( 4 ) two contact areas ( 16 ) for contacting in particular at least one conductor track ( 28 ) on a printed circuit board ( 7 ) having. Electrical terminal according to one of claims 1 to 3, characterized in that the contact frame ( 4 ) two contact areas ( 16 ) for contacting in particular at least one conductor track ( 28 ) on a printed circuit board ( 7 ) having.
Electrical terminal according to one of claims 1 to 4, characterized in that for forming the clamping edge, the free end of the leaf spring ( 9 ) one against the electrical conductor ( 5 ) exhibition ( 13 ) having. Electrical terminal according to one of claims 1 to 4, characterized in that for forming the clamping edge, the free end of the leaf spring ( 9 ) one against the electrical conductor ( 5 ) exhibition ( 13 ) having. Electrical terminal according to one of claims 1 to 4, characterized in that for forming the clamping edge, the free end of the leaf spring ( 9 ) one against the electrical conductor ( 5 ) exhibition ( 13 ) having. Electrical terminal according to one of claims 1 to 4, characterized in that for forming the clamping edge, the free end of the leaf spring ( 9 ) one against the electrical conductor ( 5 ) exhibition ( 13 ) having. Electrical terminal according to one of claims 1 to 4, characterized in that for forming the clamping edge, the free end of the leaf spring ( 9 ) one against the electrical conductor ( 5 ) exhibition ( 13 ) having. Electrical terminal according to one of claims 1 to 4, characterized in that for forming the clamping edge, the free end of the leaf spring ( 9 ) one against the electrical conductor ( 5 ) exhibition ( 13 ) having. Electrical terminal according to one of claims 1 to 4, characterized in that for forming the clamping edge, the free end of the leaf spring ( 9 ) one against the electrical conductor ( 5 ) exhibition ( 13 ) having.
Electrical terminal according to one of claims 1 to 5, characterized in that on the leaf springs ( 9 Electrical terminal according to one of claims 1 to 5, characterized in that on the leaf springs ( 9 ) one each to the outside of the electrical terminal ( 1 ) directed run-up slope ( 12 ) is formed, which are funnel-shaped issued to each other.
Electrical terminal according to claim 6, characterized in that on the insulating housing ( 2 ) as a pusher ( 21 ) trained actuating element is formed, which on the funnel-shaped issued to each other starting chamfers ( 12 ) between the leaf springs ( 9 ) can be pressed to the terminal connection of the electrical conductor ( Electrical terminal according to claim 6, characterized in that on the insulating housing ( 2 ) as a pusher ( 21 ) trained actuating element is formed, which on the funnel-shaped issued to each other starting chamfers ( 12 ) between the leaf springs ( 9 ) can be pressed to the terminal connection of the electrical conductor ( Electrical terminal according to claim 6, characterized in that on the insulating housing ( 2 ) as a pusher ( 21 ) trained actuating element is formed, which on the funnel-shaped issued to each other starting chamfers ( 12 ) between the leaf springs ( 9 ) can be pressed to the terminal connection of the electrical conductor ( Electrical terminal according to claim 6, characterized in that on the insulating housing ( 2 ) as a pusher ( 21 ) trained actuating element is formed, which on the funnel-shaped issued to each other starting chamfers ( 12 ) between the leaf springs ( 9 ) can be pressed to the terminal connection of the electrical conductor ( Electrical terminal according to claim 6, characterized in that on the insulating housing ( 2 ) as a pusher ( 21 ) trained actuating element is formed, which on the funnel-shaped issued to each other starting chamfers ( 12 ) between the leaf springs ( 9 ) can be pressed to the terminal connection of the electrical conductor ( Electrical terminal according to claim 6, characterized in that on the insulating housing ( 2 ) as a pusher ( 21 ) trained actuating element is formed, which on the funnel-shaped issued to each other starting chamfers ( 12 ) between the leaf springs ( 9 ) can be pressed to the terminal connection of the electrical conductor ( Electrical terminal according to claim 6, characterized in that on the insulating housing ( 2 ) as a pusher ( 21 ) trained actuating element is formed, which on the funnel-shaped issued to each other starting chamfers ( 12 ) between the leaf springs ( 9 ) can be pressed to the terminal connection of the electrical conductor ( Electrical terminal according to claim 6, characterized in that on the insulating housing ( 2 ) as a pusher ( 21 ) trained actuating element is formed, which on the funnel-shaped issued to each other starting chamfers ( 12 ) between the leaf springs ( 9 ) can be pressed to the terminal connection of the electrical conductor ( Electrical terminal according to claim 6, characterized in that on the insulating housing ( 2 ) as a pusher ( 21 ) trained actuating element is formed, which on the funnel-shaped issued to each other starting chamfers ( 12 ) between the leaf springs ( 9 ) can be pressed to the terminal connection of the electrical conductor ( 5 ) by pushing apart the leaf springs ( 9 ) to open.
Electrical terminal according to one of claims 1 to 7, characterized in that the contact frame ( 4 ) via at least one latching connection ( 14 . 17 ) with the insulating material housing ( 2 ) connected is. Electrical terminal according to one of claims 1 to 7, characterized in that the contact frame ( 4 ) via at least one latching connection ( 14 . 17 ) with the insulating material housing ( 2 ) connected is. Electrical terminal according to one of claims 1 to 7, characterized in that the contact frame ( 4 ) via at least one latching connection ( 14 . 17 ) with the insulating material housing ( 2 ) connected is. Electrical terminal according to one of claims 1 to 7, characterized in that the contact frame ( 4 ) via at least one latching connection ( 14 . 17 ) with the insulating material housing ( 2 ) connected is. Electrical terminal according to one of claims 1 to 7, characterized in that the contact frame ( 4 ) via at least one latching connection ( 14 . 17 ) with the insulating material housing ( 2 ) connected is. Electrical terminal according to one of claims 1 to 7, characterized in that the contact frame ( 4 ) via at least one latching connection ( 14 . 17 ) with the insulating material housing ( 2 ) connected is. Electrical terminal according to one of claims 1 to 7, characterized in that the contact frame ( 4 ) via at least one latching connection ( 14 . 17 ) with the insulating material housing ( 2 ) connected is. Electrical terminal according to one of claims 1 to 7, characterized in that the contact frame ( 4 ) via at least one latching connection ( 14 . 17 ) with the insulating material housing ( 2 ) connected is. Electrical terminal according to one of claims 1 to 7, characterized in that the contact frame ( 4 ) via at least one latching connection ( 14 . 17 ) with the insulating material housing ( 2 ) connected is.
Actuating device according to one of claims 1 to 8, characterized in that for the leaf springs ( 9 ) and / or the pusher ( 21 Actuating device according to one of claims 1 to 8, characterized in that for the leaf springs ( 9 ) and / or the pusher ( 21 Actuating device according to one of claims 1 to 8, characterized in that for the leaf springs ( 9 ) and / or the pusher ( 21 Actuating device according to one of claims 1 to 8, characterized in that for the leaf springs ( 9 ) and / or the pusher ( 21 ) An overload protection is provided.
Actuating device according to claim 9, characterized in that the deflection of the leaf spring ( 9 ) by side walls ( 33 ) and / or partitions of the insulating housing ( 2 ) is limited. Actuating device according to claim 9, characterized in that the deflection of the leaf spring ( 9 ) by side walls ( 33 ) and / or partitions of the insulating housing ( 2 ) is limited. Actuating device according to claim 9, characterized in that the deflection of the leaf spring ( 9 ) by side walls ( 33 ) and / or partitions of the insulating housing ( 2 ) is limited. Actuating device according to claim 9, characterized in that the deflection of the leaf spring ( 9 ) by side walls ( 33 ) and / or partitions of the insulating housing ( 2 ) is limited. Actuating device according to claim 9, characterized in that the deflection of the leaf spring ( 9 ) by side walls ( 33 ) and / or partitions of the insulating housing ( 2 ) is limited. Actuating device according to claim 9, characterized in that the deflection of the leaf spring ( 9 ) by side walls ( 33 ) and / or partitions of the insulating housing ( 2 ) is limited. Actuating device according to claim 9, characterized in that the deflection of the leaf spring ( 9 ) by side walls ( 33 ) and / or partitions of the insulating housing ( 2 ) is limited.
Actuating device according to claim 9 or 10, characterized in that the deflection of the trigger arm ( 23 ) by an attachment of the trigger arm ( 23 Actuating device according to claim 9 or 10, characterized in that the deflection of the trigger arm ( 23 ) by an attachment of the trigger arm ( 23 Actuating device according to claim 9 or 10, characterized in that the deflection of the trigger arm ( 23 ) by an attachment of the trigger arm ( 23 Actuating device according to claim 9 or 10, characterized in that the deflection of the trigger arm ( 23 ) by an attachment of the trigger arm ( 23 ) on at least one leaf spring ( 9 ) is limited.